16 Best Window Companies in Charleston, SC (2024 Reviews)

How Installing Energy-Efficient Windows in Charleston Saves You Money

Energy-efficient windows can provide benefits in more than one way. Here are a few reasons you may want to consider making the switch:

• Save on power bills: According to the Department of Energy, heat gained or lost through windows accounts for around 25-30% of residential energy use. Installing energy-efficient models can help lower how much energy is used in your home, therefore saving you about 12% more on your bills.
• Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its value, particularly if you have an older home.
• Reduce your carbon footprint: Reducing the amount of energy you use also lowers your indirect greenhouse gas emissions. You could reduce it by about 357 pounds.
• Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help reduce damage from the sun's UV rays to your floors, carpets and furniture.

Estimated Cost of Window Replacement in Charleston

Windows come in various shapes and sizes, so costs and services will differ remarkably. Here are the average costs and services that you’ll find from window installation companies.

How Much Do New Windows Cost?

Typically, homeowners in Charleston can expect that most replacement window installations will range from $250 to $1,200, with the average cost sitting at about $600. Costs will vary considerably depending on the current condition of your home, the number of windows you need, your location and the quality of your products. A lot of window companies also offer door installations and other add-ons like baths, shutters, coating and more. These extra services will increase overall project costs.

It’s important to note that windows with higher efficiency may cost more upfront but can save you hundreds of dollars by decreasing your energy bills. Investing in Energy Star certified windows can save Charleston homeowners $337+ a year when replacing single-pane windows.

Asking for free quotes from several companies is the best way to figure out which one will work best for your budget.

What Services do Window Installers Offer?

In regard to window replacements, in general there are two types that your provider will offer: full-frame and pocket installations.

Full-frame installations are usually recommended when you want a new style or your window has a lot of rot. With this service, your installers will replace the full window, including the sill, frame and trim. A pocket installation entails installing a new window within the existing frame. This means instead of removing the whole unit and rebuilding it, the installer will just slide the replacement window (also called a retrofit or insert window) into the frame.

Your window installation company can help you choose which type of installation you need.

How We Choose the Best Window Installers in Charleston

In our hunt to make your home improvements easier and more eco-friendly in Charleston, the EcoWatch team landed on the above companies as the top window installation companies in the city. We’ve evaluated the best window installation companies in Charleston primarily based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows have been shown to cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:

Service Area

This one is self-explanatory, but we’ve chosen to highlight window installers that serve a wide variety of states and cities so you can find the right window installation company near you.

Work Quality

When picking new windows, the quality and variety of services often plays just as important of a role in overall efficiency and performance as the type of window you choose. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.

Customer Reviews

Customer feedback is another very important review factor. If most customers don’t have good feedback about their service from a certain company, it won’t be featured on EcoWatch.

Cost

This one is a give-and-take: as with most services, cheap window installation companies are not going to provide the highest quality service. Still, we want to ensure we’re highlighting companies that provide a wide range of price and financing options so they’re accessible to most homeowners.

Warranty

Protecting your investment in new windows is important to many homeowners. That’s why window installation companies that provide lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.

Years of Experience

Due to Charleston’s climate, homeowners need to be wary of rot, water damage and low efficiency. We factored in local experience to reflect the ability of Charleston window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.